Gelberg



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BiC. ENGELBBRG.

MACHINE FOR HULLING Mee.

No. 341,324. Patented May 4, 1886.

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UNITED STATE-s PATENT Ormea.

EVARISTO CONBADO ENGELBEBG, OF PIRAGICABA, SAO PAULO, BRAZIL.

MACHINE FOR HULLING RICE.

SPECIFICATION forming part of Letters Patent No. 341,324, dated May' 4, 1886.

Application filed September 2, 1885. Serial No. 176, 016.

T0 all whom it may concern,.-

Be it known that l, EVARISTO CoNRADo EN- GELBERG, mechanical engineer, a subject of the Emperor of Brazil, and a resident of Piracicaba, in the Province of Sao Paulo, Brazil, have invented a new and useful Improved Machine for Hulling Bice, (for which I have obtained ai patent in Great Britain, No. 9,574, bearing date August l1, 1885,) of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to a machine for hulling rice, and comprises the improvements hereinafter described and claimed.

In the accompanying drawings, Figure l is a perspective View of thc improved machine. Fig. 2 is a view of the hulling-cylinder removed. Fig. 3 is a plan of the lower portion ofthe machine-casing, and Fig. 4 is an under side View of the upper portion. Fig. 5 is a transverse section of the machine through the feed-opening.

a is the hullingcylinder, which is prefera bly of cast-iron, and on the surface of which are fixed, according to its size, three or more bars, c, of wrought-iron or steel. These bars project from four to five millimeters from the surface of the cylinder, and are arranged at an angle of three degrees (more or less) to the axis of the said cylinder.

The cylinder a works within a cylindrical casing, a, preferably of castiron,which casing is open below the cylinder. Over this opening is secured, by means of screws or otherwise, a perforated plate, d, having holes of, say, one millimeter in diameter, and forming a sieve for the discharge of the ne particles arising during the operation of the machine.

c is an opening in th'e upper part ofthe casing, through which the rice is fed, andf is an opening inthe lower part ofthe casing,through which the hulled rice is discharged.

g g are screws or bolts, by means of which the machine may be secured to any suitable frame-work.

The cylindrical casing a is extended laterally at one side to constitute a rectilinear case, a2, forming a correspondiugly-shaped chamloer.

(No model.) Patented in England August 11, 1885, No. 9,574.

b, Figs. 3 and 5, is a rectangular stone or a block of concrete or other suitable material fitted into the chamber within the laterallyextended case c2, against which the rice is hulled. The position of this stone or block relatively to the cylinder a is adjusted by means of the screws p, which extend transversely through the outer wall of the case a?, and bear at their inner ends against the stone b, so as to slide the latter horizontally along the said case toward the'cylinder.

The machine, as shown in Fig. 1, is adapted to be operated by means of a crank-hand1e attached to a ily-Wheel. It is clear, however, that this machine could be made of large size and be operated by any suitable motive power.

The operation of the improved machine is as follows-that is to say, after startingthe machine the rice is placed in the hopper m, and entering the casing at e the bars o of the vcylinder carry it against the stone b, where it is subjected to friction between the said stone and the roller, whereby it is hulled without being much crushed.

Vhat I claim is- A machine for hulling rice,co nsisting of the following elements, to wit: the cylindrical casing a', having the top inlet-opening and the longitudinal bottom opening extending approximate] y throughout the length of said cylinder, the concave perforated plate d, arranged in said longitudinal opening,the lateral rectilinear closed case a2, projecting from the cylindrical case, the screws tapped through the end wall ofthe latter, the sliding` stone b, inclosed by the rectilinear case, and the rotat ing cylinder a, having the attached longitudinal metal bars c, substantially as and for the purpose described.

In testimony that I claim the foregoing as my invention I have signed my name in pres ence of two subscribing witnesses.

EVARISTO CORADO ENGELBERG.

NVitnesses:

JULEs GERAUD, DoUeLAs WATSON. 

